The Brain Power Guide is not meant to be a comprehensive guide. There are many things that help to improve a person's brain power, but many of them have only a small effect. It's a lot like the way you would have to practice to become a better baseball player: It's about learning new skills, but not all of the skills are necessary. What's important is that you practice the ones that you need to develop and master. The most important thing for brain power is to exercise, and this is why the Brain Power Guide lists the exercises that are most effective. It's important to do exercises, because it will allow you to increase your brain power. As an example, you might have to use the brain power of 10,000 people, which is about the number of people who are in a race where they have to run the entire distance from New York to Paris in 10 hours. That would be a very hard challenge, but one you can do. In fact, you could do it in about 20 minutes. You would have to spend more than $150,000 on a race like that. For brain power to improve, the exercise must be performed in a safe and controlled environment.